2020-2025
From January 2018 to December 2024, 75% of Lassa fever confirmed cases were from Ondo (33%), Edo (31%) and Bauchi (11%).
In 2025, as of epi week 12, 87% of LF cases are from Ondo (29%), Bauchi (25%), Edo (16%), and Taraba (16%) States.
Total confirmed cases: 645
Deaths from Confirmed Cases: 119
Case Fatality Ratio: 18%
Number of Health Care Workers: 20
| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 926 | 190 | 23 | 12% | ||||
| 2024 | 1028 | 184 | 13 | 7% | ||||
| 2023 | 1046 | 262 | 30 | 11% | ||||
| 2022 | 616 | 193 | 34 | 18% | ||||
| 2021 | 252 | 61 | 18 | 30% | ||||
| 2020 | 451 | 299 | 43 | 14% | ||||
Source: NCDC |
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| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 659 | 161 | 12 | 7% | ||||
| 2024 | 564 | 123 | 27 | 22% | ||||
| 2023 | 594 | 92 | 15 | 16% | ||||
| 2022 | 583 | 102 | 10 | 10% | ||||
| 2021 | 36 | 7 | 2 | 29% | ||||
| 2020 | 251 | 41 | 17 | 41% | ||||
Source: NCDC |
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| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 1083 | 105 | 16 | 15% | ||||
| 2024 | 1178 | 178 | 23 | 13% | ||||
| 2023 | 1407 | 238 | 31 | 13% | ||||
| 2022 | 1088 | 164 | 21 | 13% | ||||
| 2021 | 852 | 102 | 12 | 12% | ||||
| 2020 | 980 | 306 | 39 | 13% | ||||
Source: NCDC |
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| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 247 | 103 | 31 | 30% | ||||
| 2024 | 190 | 95 | 20 | 21% | ||||
| 2023 | 206 | 73 | 25 | 34% | ||||
| 2022 | 70 | 29 | 14 | 48% | ||||
| 2021 | 46 | 18 | 11 | 61% | ||||
| 2020 | 89 | 54 | 21 | 39% | ||||
Source: NCDC |
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| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 99 | 19 | 9 | 47% | ||||
| 2024 | 213 | 43 | 24 | 56% | ||||
| 2023 | 160 | 49 | 27 | 55% | ||||
| 2022 | 180 | 37 | 17 | 46% | ||||
| 2021 | 75 | 15 | 6 | 40% | ||||
| 2020 | 149 | 67 | 16 | 24% | ||||
Source: NCDC |
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| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 63 | 15 | 4 | 27% | ||||
| 2024 | 94 | 28 | 2 | 7% | ||||
| 2023 | 34 | 11 | 1 | 9% | ||||
| 2022 | 96 | 37 | 6 | 16% | ||||
| 2021 | 5 | 1 | 0 | 0% | ||||
| 2020 | 73 | 33 | 8 | 24% | ||||
Source: NCDC |
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| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 55 | 12 | 6 | 50% | ||||
| 2024 | 25 | 3 | 1 | 33% | ||||
| 2023 | 29 | 6 | 0 | 0% | ||||
| 2022 | 101 | 15 | 6 | 40% | ||||
| 2021 | 3 | 0 | 0 | – | ||||
| 2020 | 23 | 7 | 2 | 29% | ||||
Source: NCDC |
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| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 40 | 9 | 4 | 44% | ||||
| 2024 | 999 | 62 | 11 | 18% | ||||
| 2023 | 131 | 36 | 3 | 8% | ||||
| 2022 | 188 | 30 | 8 | 27% | ||||
| 2021 | 13 | 3 | 0 | 0% | ||||
| 2020 | 21 | 8 | 3 | 38% | ||||
Source: NCDC |
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Any questions or suggestions? Contact us: Anaïs Legand and Antoine Chaillon
As of 2025, week 12